I went and split my window the other day - it was cold and I did the chop but it split on one edge
(when I say cold, around 60! hey I did have to put on a sweater!).
Anywhooo, I am now looking at a glass window top replacement soon.
I have been thinking about access and figure I only go in from the top to check steering fluid and air cleaner. All the other stuff, oil filter/change, spark plugs, drive belt, etc. is got at from below or behind seats! So I can't think of a reason not to go glass window!